The stroking method makes all of the atoms in the magnetic object point in one direction, causing a magnetic field.
iron and the materials that are attracted or repelled by the magnet
First, grab an iron nail. Next, grab a bar magnet. Stroke the iron nail with the bar magnet at least 20 times. You can increase the strength by stroking it more. Now, bring the iron nail near some paper clips. It attracts them! Science is cool!
this method is used for making the compound in gel form
It was noticed that magnetizing a steel bar could be made easier by the use of the double touch method. Procedure: 1.Place a steel bar on a flat surface. e.g a table 2.Then two strong bar magnets are struck on the steel bar with their opposite poles striking the steel bar on either side AB.e.g the north pole of one magnet strikes side A and the south pole of another magnet strikes side B. 3.The magnets are moved to the centre and when they reach the centre,they are taken back to their original places in a magnetic field of way. 4.This stroke is repeated for several times until A and B gain a polarity. 5.You will notice that A will get the opposite polarity as B.i.e A will become the south pole while B will become the north pole.
Some magnets are metal. Not all magnets are metal (though I can't offhand think of any magnets that don't at least contain metal), and not all metals are magnets.
Permanent magnets can be made by :- 1. Applying elecric field to the magnet put in between the coils of solenoid. 2. By putting magnets on the tracks of trains.
cold temperature affects the magnets strength by making it stronger
Some magnets are stronger than others, making them harder to pull apart. For strong magnets, you can pull the magnets sideways to get them apart.
You stroke it with a magnet.That's how you turn a nail into a magnet.
What are the advantage and disadvantaged of stroke method of sensitivithy test
Use of magnets
the element is cobalt
no becuse they are not the right material
iron and the materials that are attracted or repelled by the magnet
tungsten
Basicly stopped making the 2 stroke motor. Now most quads are 4 stroke. The Blaster was also cut.
you can do many things with magnet such as making a compass ang painting or playing with it and finding magnets memmories